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| <label for=m-zh-cndocsadvanceddelay-publish-check><a href=/zh-cn/docs/advanced/delay-publish/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvanceddelay-publish><span>延迟暴露</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedconcurrency-control-li><input type=checkbox id=m-zh-cndocsadvancedconcurrency-control-check> |
| <label for=m-zh-cndocsadvancedconcurrency-control-check><a href=/zh-cn/docs/advanced/concurrency-control/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedconcurrency-control><span>并发控制</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedconfig-connections-li><input type=checkbox id=m-zh-cndocsadvancedconfig-connections-check> |
| <label for=m-zh-cndocsadvancedconfig-connections-check><a href=/zh-cn/docs/advanced/config-connections/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedconfig-connections><span>连接控制</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedlazy-connect-li><input type=checkbox id=m-zh-cndocsadvancedlazy-connect-check> |
| <label for=m-zh-cndocsadvancedlazy-connect-check><a href=/zh-cn/docs/advanced/lazy-connect/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedlazy-connect><span>延迟连接</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedstickiness-li><input type=checkbox id=m-zh-cndocsadvancedstickiness-check> |
| <label for=m-zh-cndocsadvancedstickiness-check><a href=/zh-cn/docs/advanced/stickiness/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedstickiness><span>粘滞连接</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedtls-li><input type=checkbox id=m-zh-cndocsadvancedtls-check> |
| <label for=m-zh-cndocsadvancedtls-check><a href=/zh-cn/docs/advanced/tls/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedtls><span>TLS</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedtoken-authorization-li><input type=checkbox id=m-zh-cndocsadvancedtoken-authorization-check> |
| <label for=m-zh-cndocsadvancedtoken-authorization-check><a href=/zh-cn/docs/advanced/token-authorization/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedtoken-authorization><span>令牌验证</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedrouting-rule-li><input type=checkbox id=m-zh-cndocsadvancedrouting-rule-check> |
| <label for=m-zh-cndocsadvancedrouting-rule-check><a href=/zh-cn/docs/advanced/routing-rule/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedrouting-rule><span>路由规则</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedrouting-rule-deprecated-li><input type=checkbox id=m-zh-cndocsadvancedrouting-rule-deprecated-check> |
| <label for=m-zh-cndocsadvancedrouting-rule-deprecated-check><a href=/zh-cn/docs/advanced/routing-rule-deprecated/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedrouting-rule-deprecated><span>旧路由规则</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedconfig-rule-li><input type=checkbox id=m-zh-cndocsadvancedconfig-rule-check> |
| <label for=m-zh-cndocsadvancedconfig-rule-check><a href=/zh-cn/docs/advanced/config-rule/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedconfig-rule><span>配置规则</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedservice-downgrade-li><input type=checkbox id=m-zh-cndocsadvancedservice-downgrade-check> |
| <label for=m-zh-cndocsadvancedservice-downgrade-check><a href=/zh-cn/docs/advanced/service-downgrade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedservice-downgrade><span>服务降级</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedconfig-rule-deprecated-li><input type=checkbox id=m-zh-cndocsadvancedconfig-rule-deprecated-check> |
| <label for=m-zh-cndocsadvancedconfig-rule-deprecated-check><a href=/zh-cn/docs/advanced/config-rule-deprecated/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedconfig-rule-deprecated><span>旧配置规则</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedconsumer-threadpool-li><input type=checkbox id=m-zh-cndocsadvancedconsumer-threadpool-check> |
| <label for=m-zh-cndocsadvancedconsumer-threadpool-check><a href=/zh-cn/docs/advanced/consumer-threadpool/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedconsumer-threadpool><span>消费端线程池模型</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedgraceful-shutdown-li><input type=checkbox id=m-zh-cndocsadvancedgraceful-shutdown-check> |
| <label for=m-zh-cndocsadvancedgraceful-shutdown-check><a href=/zh-cn/docs/advanced/graceful-shutdown/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedgraceful-shutdown><span>优雅停机</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedhostname-binding-li><input type=checkbox id=m-zh-cndocsadvancedhostname-binding-check> |
| <label for=m-zh-cndocsadvancedhostname-binding-check><a href=/zh-cn/docs/advanced/hostname-binding/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedhostname-binding><span>主机绑定</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedset-host-li><input type=checkbox id=m-zh-cndocsadvancedset-host-check> |
| <label for=m-zh-cndocsadvancedset-host-check><a href=/zh-cn/docs/advanced/set-host/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedset-host><span>主机配置</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedsimplify-registry-data-li><input type=checkbox id=m-zh-cndocsadvancedsimplify-registry-data-check> |
| <label for=m-zh-cndocsadvancedsimplify-registry-data-check><a href=/zh-cn/docs/advanced/simplify-registry-data/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedsimplify-registry-data><span>注册信息简化</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedlogger-strategy-li><input type=checkbox id=m-zh-cndocsadvancedlogger-strategy-check> |
| <label for=m-zh-cndocsadvancedlogger-strategy-check><a href=/zh-cn/docs/advanced/logger-strategy/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedlogger-strategy><span>日志适配</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedaccesslog-li><input type=checkbox id=m-zh-cndocsadvancedaccesslog-check> |
| <label for=m-zh-cndocsadvancedaccesslog-check><a href=/zh-cn/docs/advanced/accesslog/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedaccesslog><span>访问日志</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsadvancedservice-container-li><input type=checkbox id=m-zh-cndocsadvancedservice-container-check> |
| <label for=m-zh-cndocsadvancedservice-container-check><a href=/zh-cn/docs/advanced/service-container/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsadvancedservice-container><span>服务容器</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocsmigration-li><input type=checkbox id=m-zh-cndocsmigration-check> |
| <label for=m-zh-cndocsmigration-check><a href=/zh-cn/docs/migration/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocsmigration><span>升级与兼容性</span></a></label><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsmigrationmigration-and-compatibility-guide-li><input type=checkbox id=m-zh-cndocsmigrationmigration-and-compatibility-guide-check> |
| <label for=m-zh-cndocsmigrationmigration-and-compatibility-guide-check><a href=/zh-cn/docs/migration/migration-and-compatibility-guide/ title="3.x 升级与兼容性指南" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsmigrationmigration-and-compatibility-guide><span>总结</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsmigrationmigration-service-discovery-li><input type=checkbox id=m-zh-cndocsmigrationmigration-service-discovery-check> |
| <label for=m-zh-cndocsmigrationmigration-service-discovery-check><a href=/zh-cn/docs/migration/migration-service-discovery/ title=应用级地址发现迁移指南 class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsmigrationmigration-service-discovery><span>应用级地址发现</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsmigrationmigration-triple-li><input type=checkbox id=m-zh-cndocsmigrationmigration-triple-check> |
| <label for=m-zh-cndocsmigrationmigration-triple-check><a href=/zh-cn/docs/migration/migration-triple/ title=Triple协议迁移指南 class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsmigrationmigration-triple><span>Triple</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsmigrationmigration-routingrule-li><input type=checkbox id=m-zh-cndocsmigrationmigration-routingrule-check> |
| <label for=m-zh-cndocsmigrationmigration-routingrule-check><a href=/zh-cn/docs/migration/migration-routingrule/ title=统一路由规则升级指南 class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsmigrationmigration-routingrule><span>路由规则</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguages-li><input type=checkbox id=m-zh-cndocslanguages-check> |
| <label for=m-zh-cndocslanguages-check><a href=/zh-cn/docs/languages/ title=多语言实现 class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguages><span>多语言</span></a></label><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguageserlang-li><input type=checkbox id=m-zh-cndocslanguageserlang-check> |
| <label for=m-zh-cndocslanguageserlang-check><a href=/zh-cn/docs/languages/erlang/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguageserlang><span>Erlang</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguageserlangquick-start-li><input type=checkbox id=m-zh-cndocslanguageserlangquick-start-check> |
| <label for=m-zh-cndocslanguageserlangquick-start-check><a href=/zh-cn/docs/languages/erlang/quick-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguageserlangquick-start><span>快速开始</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguageserlangreference-li><input type=checkbox id=m-zh-cndocslanguageserlangreference-check> |
| <label for=m-zh-cndocslanguageserlangreference-check><a href=/zh-cn/docs/languages/erlang/reference/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguageserlangreference><span>消费者配置</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguageserlangservice-li><input type=checkbox id=m-zh-cndocslanguageserlangservice-check> |
| <label for=m-zh-cndocslanguageserlangservice-check><a href=/zh-cn/docs/languages/erlang/service/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguageserlangservice><span>提供者配置</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguageserlangserialization-li><input type=checkbox id=m-zh-cndocslanguageserlangserialization-check> |
| <label for=m-zh-cndocslanguageserlangserialization-check><a href=/zh-cn/docs/languages/erlang/serialization/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguageserlangserialization><span>序列化配置项</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolang-li><input type=checkbox id=m-zh-cndocslanguagesgolang-check> |
| <label for=m-zh-cndocslanguagesgolang-check><a href=/zh-cn/docs/languages/golang/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolang><span>golang</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangquick-start-li><input type=checkbox id=m-zh-cndocslanguagesgolangquick-start-check> |
| <label for=m-zh-cndocslanguagesgolangquick-start-check><a href=/zh-cn/docs/languages/golang/quick-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangquick-start><span>Go 快速开始</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolanggo-specific-li><input type=checkbox id=m-zh-cndocslanguagesgolanggo-specific-check> |
| <label for=m-zh-cndocslanguagesgolanggo-specific-check><a href=/zh-cn/docs/languages/golang/go-specific/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolanggo-specific><span>Go 语言定义服务</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-15-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-15-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-15-check><a href=/zh-cn/docs/languages/golang/dubbo-go-1.5/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-15><span>Dubbo-go 1.5</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-15configurationclient-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-15configurationclient-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-15configurationclient-check><a href=/zh-cn/docs/languages/golang/dubbo-go-1.5/configuration/client/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-15configurationclient><span>client</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-15configurationprovider-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-15configurationprovider-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-15configurationprovider-check><a href=/zh-cn/docs/languages/golang/dubbo-go-1.5/configuration/provider/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-15configurationprovider><span>service providers</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-15quick-start-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-15quick-start-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-15quick-start-check><a href=/zh-cn/docs/languages/golang/dubbo-go-1.5/quick-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-15quick-start><span>快速开始</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-30-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-30><span>Dubbo-go 3.0</span></a></label><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samples-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samples-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samples-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-30samples><span>高级使用</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-filter-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-filter-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-filter-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/custom-filter/ title="Dubbo-go 3.0 自定义filter" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-filter><span>Filter</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesgo_java_interactive-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesgo_java_interactive-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesgo_java_interactive-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/go_java_interactive/ title="go-java 3.0 互通示例" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesgo_java_interactive><span>Go-Java 互通</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesmetrics-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesmetrics-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesmetrics-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/metrics/ title="Dubbo-go 数据上报" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesmetrics><span>Metrics 数据上报</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplessamples_repo-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplessamples_repo-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplessamples_repo-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/samples_repo/ title="dubbo-go 3.0 示例仓库" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplessamples_repo><span>Samples 仓库介绍</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesexception_response-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesexception_response-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesexception_response-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/exception_response/ title="Dubbo-go 3.0 异常回传" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesexception_response><span>Triple 异常回传</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesgeneric-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesgeneric-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesgeneric-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/generic/ title="Dubbo-go 泛化调用" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesgeneric><span>泛化调用</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesmesh_router-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesmesh_router-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesmesh_router-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/mesh_router/ title="Dubbo-go v3 统一路由规则" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesmesh_router><span>路由规则</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesconfig-center-dynamic-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesconfig-center-dynamic-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesconfig-center-dynamic-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/config-center-dynamic/ title="Dubbo-go 3.0 动态配置" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesconfig-center-dynamic><span>配置中心和配置监听</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesstart-check-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesstart-check-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesstart-check-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/start-check/ title="Dubbo-go 3.0 启动时检查" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesstart-check><span>启动时检查</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-logger-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-logger-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-logger-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/custom-logger/ title="Dubbo-go 3.0 自定义日志" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplescustom-logger><span>日志</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesservice-discovery-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesservice-discovery-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesservice-discovery-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/service-discovery/ title="Dubbo-go 3.0 应用级服务发现" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesservice-discovery><span>应用级服务发现</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesregistry-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30samplesregistry-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30samplesregistry-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/samples/registry/ title="Dubbo-go 3.0 注册中心" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30samplesregistry><span>注册中心</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-30concept-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30concept-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30concept-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/concept/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-30concept><span>基本概念</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptapp_and_interface-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30conceptapp_and_interface-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30conceptapp_and_interface-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/concept/app_and_interface/ title="Dubbo-go 的应用和接口" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptapp_and_interface><span>服务层级</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptconfiguration-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30conceptconfiguration-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30conceptconfiguration-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/concept/configuration/ title=Dubbo-go的配置 class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptconfiguration><span>框架配置</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptprotocol-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30conceptprotocol-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30conceptprotocol-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/concept/protocol/ title="Dubbo-go 的网络协议" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptprotocol><span>网络协议</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptregistry-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30conceptregistry-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30conceptregistry-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/concept/registry/ title="Dubbo-go 的注册中心" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30conceptregistry><span>注册中心</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-30preface-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30preface-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30preface-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/preface/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-30preface><span>简介</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30preface30_feature-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30preface30_feature-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30preface30_feature-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/preface/3.0_feature/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30preface30_feature><span>dubbo-go 3.0 新特性</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30prefacearchitecture-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30prefacearchitecture-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30prefacearchitecture-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/preface/architecture/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30prefacearchitecture><span>架构</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-30developer-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30developer-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30developer-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/developer/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-30developer><span>开发者指南</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30developerdesign-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30developerdesign-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30developerdesign-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/developer/design/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30developerdesign><span>架构设计</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesgolangdubbo-go-30quickstart-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30quickstart-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30quickstart-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/quickstart/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesgolangdubbo-go-30quickstart><span>快速开始</span></a></label><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_dubbo-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_dubbo-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_dubbo-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/quickstart/quickstart_dubbo/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_dubbo><span>Dubbo-go 协议快速开始</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_triple-li><input type=checkbox id=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_triple-check> |
| <label for=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_triple-check><a href=/zh-cn/docs/languages/golang/dubbo-go-3.0/quickstart/quickstart_triple/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesgolangdubbo-go-30quickstartquickstart_triple><span>Triple 协议快速开始</span></a></label></li></ul></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocslanguagesjava-li><input type=checkbox id=m-zh-cndocslanguagesjava-check> |
| <label for=m-zh-cndocslanguagesjava-check><a href=/zh-cn/docs/languages/java/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocslanguagesjava><span>java</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesjavajava-specific-li><input type=checkbox id=m-zh-cndocslanguagesjavajava-specific-check> |
| <label for=m-zh-cndocslanguagesjavajava-specific-check><a href=/zh-cn/docs/languages/java/java-specific/ title="Java 语言定义服务" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesjavajava-specific><span>Java 定义服务</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocslanguagesjavaquick-start-li><input type=checkbox id=m-zh-cndocslanguagesjavaquick-start-check> |
| <label for=m-zh-cndocslanguagesjavaquick-start-check><a href=/zh-cn/docs/languages/java/quick-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocslanguagesjavaquick-start><span>Java 快速开始</span></a></label></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocsreferences-li><input type=checkbox id=m-zh-cndocsreferences-check> |
| <label for=m-zh-cndocsreferences-check><a href=/zh-cn/docs/references/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocsreferences><span>参考手册</span></a></label><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocsreferencesprotobuf-li><input type=checkbox id=m-zh-cndocsreferencesprotobuf-check> |
| <label for=m-zh-cndocsreferencesprotobuf-check><a href=/zh-cn/docs/references/protobuf/ title=Protobuf class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocsreferencesprotobuf><span>protobuf</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsreferencesprotobufidl-li><input type=checkbox id=m-zh-cndocsreferencesprotobufidl-check> |
| <label for=m-zh-cndocsreferencesprotobufidl-check><a href=/zh-cn/docs/references/protobuf/idl/ title="使用 IDL 开发服务" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsreferencesprotobufidl><span>idl</span></a></label></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-zh-cndocsreferencesxml-li><input type=checkbox id=m-zh-cndocsreferencesxml-check> |
| <label for=m-zh-cndocsreferencesxml-check><a href=/zh-cn/docs/references/xml/ title="Schema 配置参考手册" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-zh-cndocsreferencesxml><span>XML 配置</span></a></label><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsreferencesxmldubbo-application-li><input type=checkbox id=m-zh-cndocsreferencesxmldubbo-application-check> |
| <label for=m-zh-cndocsreferencesxmldubbo-application-check><a href=/zh-cn/docs/references/xml/dubbo-application/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsreferencesxmldubbo-application><span>dubbo:application</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsreferencesxmldubbo-argument-li><input type=checkbox id=m-zh-cndocsreferencesxmldubbo-argument-check> |
| <label for=m-zh-cndocsreferencesxmldubbo-argument-check><a href=/zh-cn/docs/references/xml/dubbo-argument/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsreferencesxmldubbo-argument><span>dubbo:argument</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsreferencesxmldubbo-config-center-li><input type=checkbox id=m-zh-cndocsreferencesxmldubbo-config-center-check> |
| <label for=m-zh-cndocsreferencesxmldubbo-config-center-check><a href=/zh-cn/docs/references/xml/dubbo-config-center/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsreferencesxmldubbo-config-center><span>dubbo:config-center</span></a></label></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-zh-cndocsreferencesxmldubbo-consumer-li><input type=checkbox id=m-zh-cndocsreferencesxmldubbo-consumer-check> |
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| <label for=m-zh-cndocsperformancebenchmarking-check><a href=/zh-cn/docs/performance/benchmarking/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-zh-cndocsperformancebenchmarking><span>基准测试</span></a></label></li></ul></li></ul></li></ul></nav></div></div><main class="col-12 col-md-9 col-xl-8 pl-md-5" role=main><nav aria-label=breadcrumb class=td-breadcrumbs><ol class=breadcrumb><li class=breadcrumb-item><a href=https://dubbo.apache.org/zh-cn/docs/>文档</a></li><li class=breadcrumb-item><a href=https://dubbo.apache.org/zh-cn/docs/concepts/>概念&架构</a></li><li class="breadcrumb-item active" aria-current=page><a href=https://dubbo.apache.org/zh-cn/docs/concepts/service-discovery/ aria-disabled=true class="btn-link disabled">服务发现</a></li></ol></nav><div class=td-content><h1>服务发现</h1><div class=lead>服务发现</div><header class=article-meta></header><div class="pageinfo pageinfo-primary"><p>此文档已经不再维护。您当前查看的是快照版本。如果想要查看最新版本的文档，请参阅<a href=/zh-cn/overview/mannual/java-sdk/concepts-and-architecture/service-discovery/>最新版本</a>。</p></div><p>服务发现，即消费端自动发现服务地址列表的能力，是微服务框架需要具备的关键能力，借助于自动化的服务发现，微服务之间可以在无需感知对端部署位置与 IP 地址的情况下实现通信。</p><p>实现服务发现的方式有很多种，Dubbo 提供的是一种 Client-Based 的服务发现机制，通常还需要部署额外的第三方注册中心组件来协调服务发现过程，如常用的 <a href=https://nacos.io/>Nacos</a>、Consul、Zookeeper 等，Dubbo 自身也提供了对多种注册中心组件的对接，用户可以灵活选择。</p><p>Dubbo 基于消费端的自动服务发现能力，其基本工作原理如下图：</p><p><img src=/imgs/architecture.png alt=//imgs/architecture.png></p><p>服务发现的一个核心组件是注册中心，Provider 注册地址到注册中心，Consumer 从注册中心读取和订阅 Provider 地址列表。 |
| 因此，要启用服务发现，需要为 Dubbo 增加注册中心配置：</p><p>以 dubbo-spring-boot-starter 使用方式为例，增加 registry 配置</p><div class=highlight><pre tabindex=0 style=color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-properties data-lang=properties><span style=display:flex><span><span style=color:#586e75># application.properties</span> |
| </span></span><span style=display:flex><span>dubbo |
| </span></span><span style=display:flex><span> registry |
| </span></span><span style=display:flex><span> address<span style=color:#719e07>:</span> <span style=color:#2aa198>zookeeper://127.0.0.1:2181</span> |
| </span></span></code></pre></div><h2 id=whats-new-in-dubbo3>What’s New in Dubbo3</h2><p>就使用方式上而言，Dubbo3 与 Dubbo2 的服务发现配置是完全一致的，不需要改动什么内容。但就实现原理上而言，Dubbo3 引入了全新的服务发现模型 - 应用级服务发现， |
| 在工作原理、数据格式上已完全不能兼容老版本服务发现。</p><ul><li>Dubbo3 应用级服务发现，以应用粒度组织地址数据</li><li>Dubbo2 接口级服务发现，以接口粒度组织地址数据</li></ul><p>Dubbo3 格式的 Provider 地址不能被 Dubbo2 的 Consumer 识别到，反之 Dubbo2 的消费者也不能订阅到 Dubbo3 Provider。</p><ul><li>对于新用户，我们提倡直接启用 Dubbo3 的默认行为，即启用应用级服务发现，参见《<a href=../../examples/service-discovery>应用级服务发现</a>》；</li><li>对于老用户，要面临如何平滑迁移到应用级服务发现的问题，考虑到老用户的规模如此之大，Dubbo3 默认保持了接口级地址发现的行为，这保证了老用户可以直接无感升级到 Dubbo3。 |
| 而如果要开启应用级服务发现，则需要通过配置显示开启（双注册、双订阅），具体开启与平滑迁移过程，可参见《<a href=../../migration/migration-service-discovery>地址发现迁移指南</a>》。</li></ul><h2 id=应用级服务发现简介>应用级服务发现简介</h2><p>概括来说，Dubbo3 引入的应用级服务发现主要有以下优势</p><ul><li>适配云原生微服务变革。云原生时代的基础设施能力不断向上释放，像 Kubernetes 等平台都集成了微服务概念抽象，Dubbo3 的应用级服务发现是适配各种微服务体系的通用模型。</li><li>提升性能与可伸缩性。支持超大规模集群的服务治理一直以来都是 Dubbo 的优势，通过引入应用级服务发现模型，从本质上解决了注册中心地址数据的存储与推送压力，相应的 Consumer 侧的地址计算压力也成数量级下降；集群规模也开始变得可预测、可评估（与 RPC 接口数量无关，只与实例部署规模相关）。</li></ul><p>下图是 Dubbo2 的服务发现模型：Provider 注册服务地址，Consumer 经过注册中心协调并发现服务地址，进而对地址发起通信，这是被绝大多数微服务框架的经典服务发现流程。而 Dubbo2 的特殊之处在于，它把 “RPC 接口”的信息也融合在了地址发现过程中，而这部分信息往往是和具体的业务定义密切相关的。</p><p><img src=/imgs/v3/concepts/servicediscovery_old.png alt=//imgs/v3/concepts/servicediscovery_old.png></p><p>而在接入云原生基础设施后，基础设施融入了微服务概念的抽象，容器化微服务被编排、调度的过程即完成了在基础设施层面的注册。如下图所示，基础设施既承担了注册中心的职责，又完成了服务注册的动作，而 “RPC 接口”这部分信息，由于与具体的业务相关，不可能也不适合被基础设施托管。</p><p><img src=/imgs/v3/concepts/servicediscovery_k8s.png alt=//imgs/v3/concepts/servicediscovery_k8s.png></p><p>在这样的场景下，对 Dubbo3 的服务注册发现机制提出了两个要求： |
| Dubbo3 需要在原有服务发现流程中抽象出通用的、与业务逻辑无关的地址映射模型，并确保这部分模型足够合理，以支持将地址的注册行为和存储委托给下层基础设施 |
| Dubbo3 特有的业务接口同步机制，是 Dubbo3 需要保留的优势，需要在 Dubbo3 中定义的新地址模型之上，通过框架内的自有机制予以解决。</p><p>这样设计的全新的服务发现模型，在架构兼容性、可伸缩性上都给 Dubbo3 带来了更大的优势。</p><p><img src=/imgs/v3/concepts/servicediscovery_mem.png alt=//imgs/v3/concepts/servicediscovery_mem.png></p><p>在架构兼容性上，如上文所述，Dubbo3 复用下层基础设施的服务抽象能力成为了可能；另一方面，如 Spring Cloud 等业界其它微服务解决方案也沿用这种模型， |
| 在打通了地址发现之后，使得用户探索用 Dubbo 连接异构的微服务体系成为了一种可能。</p><p>Dubbo3 服务发现模型更适合构建可伸缩的服务体系，这点要如何理解？ |
| 这里先举个简单的例子，来直观的对比 Dubbo2 与 Dubbo3 在地址发现流程上的数据流量变化：假设一个微服务应用定义了 100 个接口（Dubbo 中的服务）， |
| 则需要往注册中心中注册 100 个服务，如果这个应用被部署在了 100 台机器上，那这 100 个服务总共会产生 100 * 100 = 10000 个虚拟节点；而同样的应用， |
| 对于 Dubbo3 来说，新的注册发现模型只需要 1 个服务（只和应用有关和接口无关）， 只注册和机器实例数相等的 1 * 100 = 100 个虚拟节点到注册中心。 |
| 在这个简单的示例中，Dubbo 所注册的地址数量下降到了原来的 1 / 100，对于注册中心、订阅方的存储压力都是一个极大的释放。更重要的是， |
| 地址发现容量彻底与业务 RPC 定义解耦开来，整个集群的容量评估对运维来说将变得更加透明：部署多少台机器就会有多大负载，不会像 Dubbo2 一样， |
| 因为业务 RPC 重构就会影响到整个集群服务发现的稳定性。</p><div id=pre-footer><h2>反馈</h2><p class=feedback--prompt>此页是否对您有帮助？</p><button class="btn btn-primary mb-4 feedback--yes">是</button> |
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